linux-kernel - Re: [PATCH AUTOSEL 6.9 17/40] ASoC: topology: Fix route memory corruption

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Message-ID: <20240812103842.p7mcx7iyb5oyj7ly@altlinux.org>
Date: Mon, 12 Aug 2024 13:38:42 +0300
From: Vitaly Chikunov <vt@...linux.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Amadeusz Sławiński <amadeuszx.slawinski@...ux.intel.com>,
	Thorsten Leemhuis <regressions@...mhuis.info>,
	Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
	Sasha Levin <sashal@...nel.org>, linux-kernel@...r.kernel.org,
	Péter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
	Mark Brown <broonie@...nel.org>, lgirdwood@...il.com,
	perex@...ex.cz, tiwai@...e.com, linux-sound@...r.kernel.org,
	Linux kernel regressions list <regressions@...ts.linux.dev>,
	stable@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 6.9 17/40] ASoC: topology: Fix route memory
 corruption

Greg,

On Mon, Aug 12, 2024 at 12:25:54PM +0200, Greg Kroah-Hartman wrote:
> On Mon, Aug 12, 2024 at 12:01:48PM +0200, Amadeusz Sławiński wrote:
> > I guess that for completeness you need to apply both patches:
> > 
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/sound/soc/soc-topology.c?id=97ab304ecd95c0b1703ff8c8c3956dc6e2afe8e1
> 
> This is already in the tree.
> 
> > was an incorrect fix which was later fixed by:
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/sound/soc/soc-topology.c?id=0298f51652be47b79780833e0b63194e1231fa34
> 
> This commit will not apply :(

It depends upon e0e7bc2cbee9 ("ASoC: topology: Clean up route loading"),
which was in the same patchset that didn't get applied.
  
  https://lore.kernel.org/stable/?q=ASoC%3A+topology%3A+Clean+up+route+loading

I see, Mark Brown said it's not suitable material for stable kernels
(since it's code cleanup), and Sasha Levin dropped it, and the dependent
commit with real fix.

Thanks,

> 
> > Applying just first one will result in runtime problems, while applying just
> > second one will result in missing NULL checks on allocation.
> 
> The second patch can not apply to the stable trees, so we need a
> backported version please.
> 
> thanks,
> 
> greg k-h